You can try with

            var routeHelper = ServiceLocator.Current.GetInstance<ContentRouteHelper>();           

var currentPageLink = routeHelper.ContentLink;

GP This is in an edit gadget in the asset pane. So the code that you sugested only returned null. Thank you though. 

trying a different rout and using dojo to try and get the current context but still geting the same result. the context is the same every time. 

define("epi-cms/component/PageVersions", [
    "epi/shell/_ContextMixin"
        ], function (_ContextMixin) {
            return dojo.declare("epi.cms.component.PageVersions", [_ContextMixin], {
                constructor: function () {
                    dojo.when(this.getCurrentContext(), function (context) {
                        var passedData = { context: context.toString() }
                        $.ajax({
                            url: "/LoremIpsum/CreateLoremIpsum/",
                            method: "post",
                            data: passedData,
                            datatype: "text",
                            success: function (data) {
                                if (data) {
                                    reload(data);
                                }
                            }, complete: function () {
                                self.fetchingNewPage = false;
                            }
                        });
                    });
                }
            });
        });
    }